package lesson1;

public class Circle {
    private double r;
    private final double PI = 3.14;

    void fun(){
        r = 222;

        final int num = 100;



    }

//    void fun(final int num){
//        num = 300;
//    }

    void fun(final Student student){
//        student.age = 300;
//        student = new Student();
    }
}
